# Help with function node -string type output
**URL:** https://discourse.nodered.org/t/help-with-function-node-string-type-output/32208
**Category:** General
**Created:** [30 August 2020 08:47 UTC](https://discourse.nodered.org/t/help-with-function-node-string-type-output/32208 "2020-08-30T08:47:35Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@diaz\_1988](https://discourse.nodered.org/u/diaz_1988)
#### Post date: [30 August 2020 08:47 UTC](https://discourse.nodered.org/t/help-with-function-node-string-type-output/32208/1 "2020-08-30T08:47:35Z")
Hey all can can someone advise how to make this function node to work
if (msg.payload === "A") {
return ["true" , "false" , "false" , "false" , "false" , "false" ,"false"];
}
else if (msg.payload === "B"){
return ["false", "true", "false", "false", "false", "false" ,"false"];
}
else if (msg.payload === "C"){
return ["false", "false", "true", "false", "false", "false" ,"false"];
}
else if (msg.payload === "D"){
return ["false", "false", "false", "true", "false", "false" ,"false"];
}
else if (msg.payload === "E"){
return ["false", "false", "false", "false", "true", "false" ,"false"];
}
else if (msg.payload === "1"){
return ["false", "false", "false", "false", "false", "true" ,"false"];
}
else if (msg.payload === "0"){
return ["false" , "false", "false", "false", "false", "false" ,"false"];
}
It says that function tried to sent a message of type string
Thanks
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [30 August 2020 09:23 UTC](https://discourse.nodered.org/t/help-with-function-node-string-type-output/32208/2 "2020-08-30T09:23:53Z")
Hi. So few things...
1. Returning an array from a function node is intended for when you have multiple outputs on the function note.
2. the return value from a function node must always be an object (or array of objects). If you intend on sending an array, assign it to the message payload property.
Try this....
```auto
msg.payload = ["false" , "false", "false", "false", "false", "false" ,"false"]
return msg;
```
---
### Author:  [@bakman2](https://discourse.nodered.org/u/bakman2)
#### Post date: [30 August 2020 10:31 UTC](https://discourse.nodered.org/t/help-with-function-node-string-type-output/32208/3 "2020-08-30T10:31:42Z")
To simplify the function node (less maintenance)
```auto
m = msg.payload
char = "ABCDE10".split("")
out = [false,false,false,false,false,false,false] // default all false
o = char.indexOf(m)
if(char[o]!=="0"){
out[o] = true
}
return {payload:out}
```
ie; all false unless...
example output
```auto
{"payload":[true,false,false,false,false,false,false],"input":"A"}
{"payload":[false,false,true,false,false,false,false],"input":"C"}
```
---
### Author:  [@diaz\_1988](https://discourse.nodered.org/u/diaz_1988)
#### Post date: [30 August 2020 11:01 UTC](https://discourse.nodered.org/t/help-with-function-node-string-type-output/32208/4 "2020-08-30T11:01:56Z")
Thanks guys both methods working perfect
---
### Author:  [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [30 August 2020 11:16 UTC](https://discourse.nodered.org/t/help-with-function-node-string-type-output/32208/5 "2020-08-30T11:16:59Z")
@bakman2 - where does the `...,"input":"A"}` come from in your example?
---
### Author:  [@bakman2](https://discourse.nodered.org/u/bakman2)
#### Post date: [30 August 2020 11:34 UTC](https://discourse.nodered.org/t/help-with-function-node-string-type-output/32208/6 "2020-08-30T11:34:58Z")
Magic!
it was to show that it the input matches with the expected output.
---
### Author:  [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [30 August 2020 13:28 UTC](https://discourse.nodered.org/t/help-with-function-node-string-type-output/32208/7 "2020-08-30T13:28:45Z")
Hmmm, I wish I had that magic since I didn't get that using your code 😟
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [29 October 2020 13:28 UTC](https://discourse.nodered.org/t/help-with-function-node-string-type-output/32208/8 "2020-10-29T13:28:46Z")
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